Data Sheet for Product
12
Siemens
023_A6V11905989_en
2022-01-
07
● Various
– Customer number
– Fabrication number
– Error flags
A data logger can only read out the data also sent by the data telegram by the meter. The
service software can adapt the default telegram.
Error messages for incorrect mounting:
The meter continuously performs self-diagnostics to detect and display various error
messages.
Error 'Wrong direction of flow (negative)'
Check whether the direction of flow arrow on
the flow measuring section matches the
system direction of flow of the system.
Rotate the flow measuring section by 180° if
the directions do not match.
Error 'negative temperature difference'
Check whether the temperature sensor is
correctly installed. Change the mounting
location if the temperature sensor is not
correctly installed.
These messages can also display even if not incorrectly mounted if the plant is idle.
Error codes
Eventually together with other error codes:
Error code Error Notes on service
Flow cannot be measured
Air in the measuring
section/pipe; vent the pipe
(as supplied)
Interruption in temperature
sensor heat side
Check temperature sensor
on the heat side, replace as
needed
Interruption in temperature
sensor cold side
Check temperature sensor
on the cooling side, replace
as needed
Electronics for temperature
assessment defective
Replace meter
Battery exhausted;
Problem with power supply
Replace battery;
Check connection